1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
use std::{error::Error, io};
use derive_more::{Display, From};
use either::Either;
use serde_json::error::Error as JsonError;
#[cfg(feature = "openssl")]
use crate::connect::openssl::{HandshakeError, SslError};
use crate::connect::ResolveError;
use crate::http::error::{HttpError, ParseError, PayloadError};
use crate::http::header::HeaderValue;
use crate::http::StatusCode;
use crate::ws::ProtocolError;
#[derive(Debug, Display, From)]
pub enum WsClientError {
#[display(fmt = "Invalid response status")]
InvalidResponseStatus(StatusCode),
#[display(fmt = "Invalid upgrade header")]
InvalidUpgradeHeader,
#[display(fmt = "Invalid connection header")]
InvalidConnectionHeader(HeaderValue),
#[display(fmt = "Missing CONNECTION header")]
MissingConnectionHeader,
#[display(fmt = "Missing SEC-WEBSOCKET-ACCEPT header")]
MissingWebSocketAcceptHeader,
#[display(fmt = "Invalid challenge response")]
InvalidChallengeResponse(String, HeaderValue),
#[display(fmt = "{}", _0)]
Protocol(ProtocolError),
#[display(fmt = "{}", _0)]
SendRequest(SendRequestError),
}
impl std::error::Error for WsClientError {}
impl From<InvalidUrl> for WsClientError {
fn from(err: InvalidUrl) -> Self {
WsClientError::SendRequest(err.into())
}
}
impl From<HttpError> for WsClientError {
fn from(err: HttpError) -> Self {
WsClientError::SendRequest(err.into())
}
}
#[derive(Debug, Display, From)]
pub enum JsonPayloadError {
#[display(fmt = "Content type error")]
ContentType,
#[display(fmt = "Json deserialize error: {}", _0)]
Deserialize(JsonError),
#[display(fmt = "Error that occur during reading payload: {}", _0)]
Payload(PayloadError),
}
impl std::error::Error for JsonPayloadError {}
#[derive(Debug, Display, From)]
pub enum ConnectError {
#[display(fmt = "SSL is not supported")]
SslIsNotSupported,
#[cfg(feature = "openssl")]
#[display(fmt = "{}", _0)]
SslError(SslError),
#[cfg(feature = "openssl")]
#[display(fmt = "{}", _0)]
SslHandshakeError(String),
#[display(fmt = "Failed resolving hostname: {}", _0)]
Resolver(ResolveError),
#[display(fmt = "No dns records found for the input")]
NoRecords,
#[display(fmt = "{}", _0)]
H2(h2::Error),
#[display(fmt = "Timeout out while establishing connection")]
Timeout,
#[display(fmt = "Internal error: connector has been disconnected")]
Disconnected,
#[display(fmt = "Connector received `Connect` method with unresolved host")]
Unresolved,
#[display(fmt = "{}", _0)]
Io(io::Error),
}
impl std::error::Error for ConnectError {}
impl From<crate::connect::ConnectError> for ConnectError {
fn from(err: crate::connect::ConnectError) -> ConnectError {
match err {
crate::connect::ConnectError::Resolver(e) => ConnectError::Resolver(e),
crate::connect::ConnectError::NoRecords => ConnectError::NoRecords,
crate::connect::ConnectError::InvalidInput => panic!(),
crate::connect::ConnectError::Unresolved => ConnectError::Unresolved,
crate::connect::ConnectError::Io(e) => ConnectError::Io(e),
}
}
}
#[cfg(feature = "openssl")]
impl<T: std::fmt::Debug> From<HandshakeError<T>> for ConnectError {
fn from(err: HandshakeError<T>) -> ConnectError {
ConnectError::SslHandshakeError(format!("{:?}", err))
}
}
#[derive(Debug, Display, From)]
pub enum InvalidUrl {
#[display(fmt = "Missing url scheme")]
MissingScheme,
#[display(fmt = "Unknown url scheme")]
UnknownScheme,
#[display(fmt = "Missing host name")]
MissingHost,
#[display(fmt = "Url parse error: {}", _0)]
Http(HttpError),
}
impl std::error::Error for InvalidUrl {}
#[derive(Debug, Display, From)]
pub enum SendRequestError {
#[display(fmt = "Invalid URL: {}", _0)]
Url(InvalidUrl),
#[display(fmt = "Failed to connect to host: {}", _0)]
Connect(ConnectError),
Send(io::Error),
Response(ParseError),
#[display(fmt = "{}", _0)]
Http(HttpError),
#[display(fmt = "{}", _0)]
H2(h2::Error),
#[display(fmt = "Timeout out while waiting for response")]
Timeout,
#[display(fmt = "Tunnels are not supported for http2 connection")]
TunnelNotSupported,
Error(Box<dyn Error>),
}
impl std::error::Error for SendRequestError {}
impl From<Either<io::Error, io::Error>> for SendRequestError {
fn from(err: Either<io::Error, io::Error>) -> Self {
match err {
Either::Left(err) => SendRequestError::Send(err),
Either::Right(err) => SendRequestError::Send(err),
}
}
}
impl From<Either<ParseError, io::Error>> for SendRequestError {
fn from(err: Either<ParseError, io::Error>) -> Self {
match err {
Either::Left(err) => SendRequestError::Response(err),
Either::Right(err) => SendRequestError::Send(err),
}
}
}
#[derive(Debug, Display, From)]
pub enum FreezeRequestError {
#[display(fmt = "Invalid URL: {}", _0)]
Url(InvalidUrl),
#[display(fmt = "{}", _0)]
Http(HttpError),
}
impl std::error::Error for FreezeRequestError {}
impl From<FreezeRequestError> for SendRequestError {
fn from(e: FreezeRequestError) -> Self {
match e {
FreezeRequestError::Url(e) => e.into(),
FreezeRequestError::Http(e) => e.into(),
}
}
}